| 摘要 |
A method of manufacturing articles such as a pipe section from particles of solid granular filler material and thermoplastic material is disclosed in which the particles of solid granular material are first heated to a temperature in excess of that required to melt the thermoplastic material and are then mixed with the thermoplastic material which is provided in the form of a powder. The thermoplastic material is melted and coats the solid granular material, the heat being supplied by the stored heat of the granular material itself. The coated granular material, still retaining considerable heat, is immediately then supplied to a suitable mold in which the coated particles adhere to each other to form the ultimate molded product bound together by the thermoplastic material. |
